linux-kernel - Re: [PATCH v14 1/2] cpufreq: Add Kryo CPU scaling driver

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Message-ID: <20180528050338.p4zg6a2v5fu3oxwe@vireshk-i7>
Date:   Mon, 28 May 2018 10:33:38 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Ilia Lin <ilialin@...eaurora.org>
Cc:     ilia.lin@...il.com, vireshk@...nel.org, nm@...com,
        sboyd@...nel.org, robh@...nel.org, mark.rutland@....com,
        rjw@...ysocki.net, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v14 1/2] cpufreq: Add Kryo CPU scaling driver

On 25-05-18, 15:41, Ilia Lin wrote:
> In Certain QCOM SoCs like apq8096 and msm8996 that have KRYO processors,
> the CPU frequency subset and voltage value of each OPP varies
> based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables
> defines the voltage and frequency value based on the msm-id in SMEM
> and speedbin blown in the efuse combination.
> The qcom-cpufreq-kryo driver reads the msm-id and efuse value from the SoC
> to provide the OPP framework with required information.
> This is used to determine the voltage and frequency value for each OPP of
> operating-points-v2 table when it is parsed by the OPP framework.
> 
> Signed-off-by: Ilia Lin <ilialin@...eaurora.org>
> ---
>  MAINTAINERS                          |   7 ++
>  drivers/cpufreq/Kconfig.arm          |  10 ++
>  drivers/cpufreq/Makefile             |   1 +
>  drivers/cpufreq/cpufreq-dt-platdev.c |   3 +
>  drivers/cpufreq/qcom-cpufreq-kryo.c  | 212 +++++++++++++++++++++++++++++++++++
>  5 files changed, 233 insertions(+)
>  create mode 100644 drivers/cpufreq/qcom-cpufreq-kryo.c

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh